bear bows

hi folks another question for you folks I have a bear bow it says fred bear on the limbs and has a 546 on its cam... now my question is if I twist my string 25 to 30 times will that help lower my draw length 2 inches since I think its a Wal-Mart special and there is the pics i have of it

In the first picture, there is a second stud that the bow string can be moved to. On some bows, this is how to adjust the draw length. I don't know if this will make the two inch adjustment that you are looking for.

Twisting/untwisting the string and/or buss cable is a way to fine tune draw length and draw weight settings but will not provide enough movement for 2 inches worth of change.